Richard de soldenhoff



(No Model.)

R. DE SOLDENHOPF.

COKE OVEN.

N0. 273,822. Patented Ma.I.13,1883

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ATENT menant) Dn sonnnrnorr, on MnaTHYaTYDvtL, coUNTY on GLAMOR- eAN, ENGLAND.

COKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 273,522, dated`1VIarch 13, 1883.

Application tiled August 8, 1882. (No model.)

To ail whom yit may concern Beit known that I, RICHARD Dn SOLDEN- HOFF, of Merthyr-T \dvil, in the county of Glamorgan, Wales, Great Britain, have invented new and useful Improvements in Coke- Ovens, ot' which the t'ollo ing is a specification.

My invention relates to certain improvements upon the well-known Coppe coke-ovens, as illustrated in the accompanying drawings, iu which Figure 1 represents a sectional elevation, and Fig. 2 a sectional plan on lines a b and c d ot' Fig. l, the object being` to increase the output ot' coke per oven.

The Coppe coke ovens are rectangular chambers surrounded with iiues located in walls ofthe oven. The heat of the walls ot' the oven acts on the coal in the oven and disengages the gases,which,whe.n burned in the fines, give back to these walls the heat taken from themjust before. It will thus be seen that there is a continuous action of taking and returning the heat from and to the walls ot' the oven. Therefore it may be concluded that it' `the combustion ofthe gases is perfect the surrounding walls of the oven are nothing else but heating-surfaces.

My improvement consists, first, in increasing the heating-surfaces in the oven to their maximum. The increase of heating-surfaces is attained by giving to the oven the shape or form ot' a rectangle, in which the numerical value ot' its area is not more than half of the numerical value of its periphery. In order to illustrate thispoint, I will take, for example, an oven which is tive feet high and one foot three inches wide. The area ot' the cross-section will be tive feet by one foot three inches, giving six and one-fourth square feet. The periphery will be tive feet by tive feet by one t'oot three inches by one foot Athree inches, giving twelve and one-halt' feet. It will thus be seen that the dimensions given to the ovens are such that every cubic foot of coal in the oven gets no less than two square feet of heating-surface.

Asecond improvement consists in the means of restoring the heat to the ovens, which would be otherwise lost.

In the ordinary Coppe ovens the space between the foundation-arch .A and the gastiues B is composed ofa series ot lues having the same width and running in the same direction as the ovens. Through this space air circulates, which necessarily cools the lines B, on one hand, while on the otherit protects the foundation-arch A from the action of the heat. This air, when heated, is discharged outside without being` utilized. From experiments made I have found that the temperature of this air thus heated is sometimes raised to 6000 Fahrenheit, and even above. According to my improvement the space between the bottom ofthe fines B and the top of the foundation-arch A is tilled in with two or three rows of refractory bricks. The arrangement of the bricks is shown in the drawings, and it may be added that the mode of arranging them is analogous to that ofthe Siemens regenerator. The cold air enters at the foundation-arch A, rises by aseries of openings,D, formed therein, and enters the space F, where, in circulating between the rows of refractory bricks, it is heated. This heated air passes to a common conduit or passage, H, from which itl issues by a series of condu1ts,G. From thence it enters into a series ot' conduits, I, situated above the ovens, and tina-lly from the latter the hot air is distributed through the iues K, situated above the partition-walls. The space F may therefore be called a regenerator of heat. This improvement does not increase the cost of construction and considera-blyincreases the production of coke. The full arrows indicate the passage of the air from the cold-air entrance in the arch A to the entrance of heated air in the partition-walls of the ovens. The dotted arrows indicate the passage of the gases.

A third improvenientconsists in the arrangement of the cross-lines outside the oven.

In the ordinary Coppe ovens the cross-titles are situated inside the construction and beneath the partition-wall, whereas I place these crossues (for the return of the Haines) as shown atLin the drawings-that is to say, outside the ovens. As these parts are those which are most likely to require repairing, I can effeet this object without stopping the opera tion ofthe oven.

I am aware that a series of coking-ovens vertically arranged have been placed side by side, and that a series of walls constituting Ido capinggas from the coal during the process fines are interposed between said ovens; that said fines are provided at their upper ends with chimneys, and that they communicate at their lower ends with a gas-ggeneratilnttr furnace by means of an intervening chamber or passage; that said ovens are provided with a series of underlying air-passages communieating with the iiues. I am also aware that coking-ovens have beenconstructed and arranged with a series of gas and air ues for the purpose of cooling by thelatter the foundation and lower portions of the brick-work of the ovens,l and also for usine,1 the air after hecoming heated and intermixed with the esoi coking, to obtain heat by combustion of' the gas. I therefore do not claim such construe tion and arrangement, broadly; but

What I do claim, and desire to secure by Letters Patent, isv 1. A coking-oven provided with a foundal tion-arch, A, and the series of openings D, formed therein, the bricks lying above said arch being arranged with intervening spaces,

whereby the airis received and heated, asspeoitied, in combination with the passage H, conduits Gr I, and the dues K, constructed in the manner and for the purposes set forth.

2. A coking-oven provided with the foundation-arch A and the series of openings D formed therein, the air-heating` spaces F, the

RICHARD DE soLnENHoFF.

fitnessesz HERBERT J. ALLIsoN, CHARLES A. ALLIsoN. 

